Bump com.diffplug.spotless from 7.2.0 to 7.2.1

Bumps com.diffplug.spotless from 7.2.0 to 7.2.1.

---
updated-dependencies:
- dependency-name: com.diffplug.spotless
  dependency-version: 7.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -3,7 +3,7 @@ plugins {
   id 'java' //java support
   id 'scala'
   id 'pmd' // code check, working on source code
-  id 'com.diffplug.spotless' version '7.2.0'//code format
+  id 'com.diffplug.spotless' version '7.2.1'//code format
   id 'com.github.spotbugs' version '6.2.2' // code check, working on byte code
   id 'de.undercouch.download' version '5.6.0'
   id 'kr.motd.sphinx' version '2.10.1' // documentation generation